6533b828fe1ef96bd1288c9a
RESEARCH PRODUCT
Design of Low-Cost Noise Measurement Sensor Network: Sensor Function Design
Jukka IhalainenIsmo HakalaIlkka KivelaChao GaoJari Luomalasubject
Protocol stackFrequency responseNoiseKey distribution in wireless sensor networksEngineeringNoise measurementbusiness.industryMobile wireless sensor networkElectronic engineeringbusinessWireless sensor networkSynchronizationdescription
In this paper, we report the sensor function design and implementation of a wireless sensor network application for measuring environmental acoustic noise. The system is built on ATmega128 and CC2420 platform. The protocol stack is based on CiNet stack with a global synchronization scheme and supports multi-hop communications. Strict filtering function specified by ITU-R 468 (namely A-weighting) is followed. Both the indoor and outdoor test results were compared with standard sound level meters (CESVA SC-20c and Pulsar94) and showed a less than ±2dB error in both short-term and longterm measurement. Power consumption has been measured that a single AA-type battery can sustain the application. Comparing to the traditional noise measurement method, our wireless sensor network solution is much lower in cost, able to offer real-time data with sensed data timely coherent, and requests least attention after deployment.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-07-01 | 2010 First International Conference on Sensor Device Technologies and Applications |